Redmine

Hi!

When i try to create a subtask, it sudden appears ERROR 500.

*Internal error

An error occurred on the page you were trying to access.
If you continue to experience problems please contact your Redmine administrator for assistance.

If you are the Redmine administrator, check your log files for details about the error.

Back*

This is my redmine components version:

Environment:
Redmine version 2.5.2.devel
Ruby version 2.1.5-p273 (2014-11-13) [x86_64-linux-gnu]
Rails version 4.1.8
Environment production
Database adapter Mysql2
SCM:
Subversion 1.8.10
Git 2.1.4
Filesystem
Redmine plugins:
no plugin installed

This is the output i receive in redmine´s log:

CollectiveIdea::Acts::NestedSet::Move::ImpossibleMove (Impossible move, target node cannot be inside moved tree.):
app/models/issue.rb:1315:in `update_nested_set_attributes'
app/models/issue.rb:174:in `create_or_update'
app/controllers/issues_controller.rb:152:in `create'

As its recomended in other post, i ve upgraded all ruby gems, but it didnt took effect, because im getting the same error. Insisting in Awesome_nested_set .

Ive checked this workaround too https://github.com/collectiveidea/awesome_nested_set/issues/142

¿Should i upgrade redmine to the lastest version to solve this problem?

• When i try to create the subtask to an unexisting issue, it works

thnks